101.5.128.0/21
AS4538 · China Education and Research Network Center
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| Country |
China
|
| Domain | cernet.edu.cn |
| ASN | AS4538 |
| Parent Range | 101.4.0.0/14 |
| Registry | APNIC |
| ID | BJR-CERNET |
WHOIS Details
inetnum: 101.4.0.0 - 101.7.255.255 netname: BJR-CERNET descr: China Education and Research Network descr: Beijing Regional Network country: CN admin-c: CER-AP tech-c: CER-AP abuse-c: AC1685-AP status: ALLOCATED PORTABLE remarks: origin AS4538 remarks: confederation remarks: -------------------------------------------------------- remarks: To report network abuse, please contact mnt-irt remarks: For troubleshooting, please contact tech-c and admin-c remarks: Report invalid contact via www.apnic.net/invalidcontact remarks: -------------------------------------------------------- mnt-by: APNIC-HM mnt-lower: MAINT-CERNET-AP mnt-routes: MAINT-CERNET-AP mnt-irt: IRT-CERNET-AP last-modified: 2020-09-03T09:16:24Z source: APNIC irt: IRT-CERNET-AP address: Network Research Center, address: Main Bldg, Tsinghua Univ address: Beijing 100084, China phone: +86-10-62784301 fax-no: +86-10-62785933 e-mail: abuse@cernet.edu.cn abuse-mailbox: abuse@cernet.edu.cn admin-c: CER-AP tech-c: CER-AP auth: # Filtered remarks: timezone GMT+8 remarks: http://www.ccert.edu.cn remarks: abuse@cernet.edu.cn was validated on 2025-08-15 mnt-by: MAINT-CERNET-AP last-modified: 2025-09-04T00:59:41Z source: APNIC role: ABUSE CERNETAP country: ZZ address: Network Research Center, address: Main Bldg, Tsinghua Univ address: Beijing 100084, China phone: +86-10-62784301 e-mail: abuse@cernet.edu.cn admin-c: CER-AP tech-c: CER-AP nic-hdl: AC1685-AP remarks: Generated from irt object IRT-CERNET-AP remarks: abuse@cernet.edu.cn was validated on 2025-08-15 abuse-mailbox: abuse@cernet.edu.cn mnt-by: APNIC-ABUSE last-modified: 2025-08-15T09:38:28Z source: APNIC role: CERNET Helpdesk address: CERNET Center address: Beijing 100084, China country: CN phone: +86-10-6278-4049 fax-no: +86-10-6278-5933 e-mail: helpdesk@cernet.edu.cn remarks: abuse@cernet.edu.cn admin-c: XL1-CN tech-c: SZ2-AP nic-hdl: CER-AP mnt-by: MAINT-CERNET-AP last-modified: 2020-09-03T09:14:12Z source: APNIC route: 101.4.0.0/14 descr: CERNET origin: AS4538 mnt-by: MAINT-CERNET-AP last-modified: 2010-12-13T06:08:01Z source: APNIC
Overlapping Ranges
BGP prefixes that contain 101.5.128.0/21
| Range | ASN | Company | Num of IPs |
|---|---|---|---|
| 101.4.0.0/14 | AS4538 | China Education and Research Network | 262,144 |
Nearby Ranges
BGP prefixes that overlap with 101.5.0.0/16
| Range | ASN | Company | Num of IPs |
|---|---|---|---|
| 101.4.0.0/14 | AS4538 | China Education and Research Network | 262,144 |
Hosted domains
There are no domains currently hosted on this ASN.
Hosted domains API
Pingable IPs
79 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.
| IP Address | ASN | Details |
|---|---|---|
| 101.5.129.136 |
6.66ms from Beijing,
CN
|
|
| 101.5.135.51 |
7.14ms from Beijing,
CN
|
|
| 101.5.132.81 |
5.53ms from Beijing,
CN
|
|
| 101.5.130.125 |
7.35ms from Tianjin,
CN
|
|
| 101.5.134.89 |
6.57ms from Tianjin,
CN
|
|
| 101.5.133.195 |
6.28ms from Beijing,
CN
|
|
| 101.5.128.1 |
3.89ms from Beijing,
CN
|
|
| 101.5.131.71 |
4.72ms from Beijing,
CN
|
Other Pingable IPs
Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.
| IP Address | ASN | Details |
|---|---|---|
| 149.20.169.117 |
3.97ms from Atlanta,
US
|
|
| 80.131.104.165 |
6.00ms from Berlin,
DE
|
|
| 18.18.38.21 |
0.39ms from Boston,
US
|
|
| 221.182.66.101 |
5.79ms from Chengdu,
CN
|
|
| 37.99.172.197 |
3.17ms from Jeddah,
SA
|
|
| 170.130.206.149 |
0.56ms from Los Angeles,
US
|
|
| 14.140.90.181 |
0.87ms from Mumbai,
IN
|
|
| 47.22.71.165 |
5.57ms from New York City,
US
|
|
| 153.176.198.213 |
9.82ms from Osaka,
JP
|
|
| 75.202.77.101 |
10.30ms from Portland,
US
|
|
| 175.200.153.117 |
7.58ms from Seoul,
KR
|
|
| 120.79.62.149 |
1.46ms from Shenzhen,
CN
|
|
| 120.241.114.5 |
3.44ms from Shenzhen,
CN
|
|
| 43.128.118.181 |
0.61ms from Singapore,
SG
|
|
| 121.50.36.133 |
1.93ms from Singapore,
SG
|
|
| 111.81.116.197 |
7.79ms from Taipei,
TW
|
|
| 173.161.154.197 |
6.89ms from Ashburn,
US
|
|
| 178.116.88.133 |
9.37ms from Brussels,
BE
|
|
| 89.135.233.53 |
1.26ms from Budapest,
HU
|
|
| 78.184.69.149 |
9.61ms from Bursa,
TR
|
|
| 43.199.145.213 |
0.13ms from Hong Kong,
HK
|
|
| 168.63.149.85 |
0.32ms from Hong Kong,
HK
|
|
| 202.131.64.53 |
0.68ms from Hong Kong,
HK
|
|
| 39.38.146.117 |
10.25ms from Islamabad,
PK
|
|
| 59.45.134.117 |
3.22ms from Liaoyang,
CN
|
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
IPinfo ProbeNet
in Tianjin, CN
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